摘要
经由新型磷系阻燃剂氨基三亚甲基膦酸铝(NYP3)与二乙基次膦酸铝(BEP-22E)复配使用,制备了无卤阻燃的增强PBT复合材料,并研究了材料的阻燃性能和燃烧残余物表面形貌。结果表明,添加质量分数为6%NYP3、10.5%BEP-22E时,材料UL 94垂直燃烧1.5 mm测试可达到V-1,LOI值高达37.1%;添加质量分数为4%NYP3、12.5%BEP-22E时,材料UL 94垂直燃烧1.5 mm测试可达到V-1,LOI值高达39.5%。由锥形量热分析可知,NYP3和BEP-22E复配使用可以有效降低复合材料的HRR及THR值,燃烧时有助于在材料表面形成致密炭层。
The halogen-free flame retardant reinforced PBT composites were prepared using amino trimethylene phosphonic acid aluminum salt(NYP3)and diethylphosphinic acid aluminum salt(BEP-22E)as the complex formulation of phosphorus flame retardants,and the flame retardancy of the composites and surface morphology of combustion residues were also investigated.The results showed when the mass fraction of NYP3 and BEP-22E were 6%and 10.5%respectively,the vertical burning 1.5 mm test of the composite achieved a UL 94V-1 rating,and the LOI is up to 37.1%.When 4%of NYP3 and 12.5%of BEP-22E were added,the composite could also pass the UL 94V-1 rating of the vertical burning 1.5 mm test along with a higher LOI of 39.5%.The combination of NYP3 and BEP-22E as the flame retardants could effectively reduce the HRR and THR data of the composite from the cone calorimetry analysis,which was helpful for the formation of a dense carbon layer on the surface of the material during combustion.
作者
陈林
柴生勇
汪廷洪
刘勤
李岩
李积德
李坤泉
邱立勤
Chen Lin;Chai Shengyong;Wang Tinghong;Liu Qin;Li Yan;Li Jide;Li Kunquan;Qiu Liqin(KINGFA Science/Technology Co.,Ltd.,Guangzhou 510663,China;School of Chemistry,Sun Yat-sen University,Guangzhou 510275,China)
出处
《塑料科技》
CAS
北大核心
2019年第8期100-104,共5页
Plastics Science and Technology
关键词
聚对苯二甲酸丁二醇酯
磷系阻燃剂
氨基三亚甲基膦酸铝
二乙基次膦酸铝
复配
PBT
Phosphorus flame retardant
Amino trimethylene phosphonic acid aluminum salt
Diethylphosphinic acid aluminum salt
Complex
